<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js canvas - point light</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				background-color: #000000;
				margin: 0px;
				overflow: hidden;
			}

			#info {
				position: absolute;
				top: 0px; width: 100%;
				color: #ffffff;
				padding: 5px;
				font-family: Monospace;
				font-size: 13px;
				text-align: center;
			}

			a {
				color: #ff0080;
				text-decoration: none;
			}

			a:hover {
				color: #0080ff;
			}
		</style>
	</head>
	<body>

		<div id="container"></div>
		<div id="info">
			<a href="http://threejs.org" target="_blank">three.js</a> - point lights demo.<br />
			Walt Disney head by <a href="http://davidoreilly.com/post/18087489343/disneyhead" target="_blank">David OReilly</a>
		</div>

		<script src="../build/three.js"></script>

		<script src="js/renderers/Projector.js"></script>
		<script src="js/renderers/CanvasRenderer.js"></script>

		<script>

			var camera, scene, renderer,
			light1, light2, light3,
			loader, mesh;

			init();
			animate();

			function init() {

				var container = document.getElementById( 'container' );

				camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 1, 1000 );
				camera.position.set( 0, - 6, 100 );

				scene = new THREE.Scene();

				scene.add( new THREE.AmbientLight( 0x00020 ) );

				light1 = new THREE.PointLight( 0xff0040, 1, 50 );
				scene.add( light1 );

				light2 = new THREE.PointLight( 0x0040ff, 1, 50 );
				scene.add( light2 );

				light3 = new THREE.PointLight( 0x80ff80, 1, 50 );
				scene.add( light3 );

				var PI2 = Math.PI * 2;
				var program = function ( context ) {

					context.beginPath();
					context.arc( 0, 0, 0.5, 0, PI2, true );
					context.fill();

				};

				var sprite = new THREE.Sprite( new THREE.SpriteCanvasMaterial( { color: 0xff0040, program: program } ) );
				light1.add( sprite );

				var sprite = new THREE.Sprite( new THREE.SpriteCanvasMaterial( { color: 0x0040ff, program: program } ) );
				light2.add( sprite );

				var sprite = new THREE.Sprite( new THREE.SpriteCanvasMaterial( { color: 0x80ff80, program: program } ) );
				light3.add( sprite );

				loader = new THREE.JSONLoader();
				loader.load( 'obj/WaltHeadLo.js', function ( geometry ) {

					mesh = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: 0xffffff, overdraw: 0.5 } ) );
					scene.add( mesh );

				} );

				renderer = new THREE.CanvasRenderer();
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			//

			function animate() {

				requestAnimationFrame( animate );
				render();

			}

			function render() {

				var time = Date.now() * 0.0005;

				if ( mesh ) mesh.rotation.y -= 0.01;

				light1.position.x = Math.sin( time * 0.7 ) * 30;
				light1.position.y = Math.cos( time * 0.5 ) * 40;
				light1.position.z = Math.cos( time * 0.3 ) * 30;

				light2.position.x = Math.cos( time * 0.3 ) * 30;
				light2.position.y = Math.sin( time * 0.5 ) * 40;
				light2.position.z = Math.sin( time * 0.7 ) * 30;

				light3.position.x = Math.sin( time * 0.7 ) * 30;
				light3.position.y = Math.cos( time * 0.3 ) * 40;
				light3.position.z = Math.sin( time * 0.5 ) * 30;

				renderer.render( scene, camera );

			}

		</script>
	</body>
</html>
